Wheel-press.



A. A. LONGAKER-Y WHEEL mnsa.

APPLICATION FILED DBO. 20, 1913.

Patented Apr. 21, 19M

2 SHEETS-SHEET 2.

WITNESSES INVE/V 70/2 BY 04 a. -@7,

ATTORNEY.

' TINTTED STATES PATENT QFFIQE.

ALBERT A. LONGAKER, OF CI-IAMBERSBURG, FENNSYLVANIA, ASSIGNOR TO CHAM- BERSBUR-G ENGINEERING COMFANY, OF GI-IAMBEBSBURG, PENNSYL VANIA, A

CORPORATION OF PENNSYLVANIA.

WHEEL-PRESS.

Specification of Letters Patent.

Patented Apr. 21, 1214.

Application filed December 20, 1913. Serial No. 807,820.

To all whom it may concern Be it known that I, ALBERT A. LONGAKER, a citizen of the United States, and a resident of Ghambersburg, in the county of Franklin and State of Pennsylvania, have invented certain new and useful Improvements in lVheel-Presses, of which the following is a specification.

My invention relates to improvements in presses for demounting wheels and axles, and the object of my invention is, primarily, to furnish a comparatively inexpensive machine for demounting, practically simultaneously, the two wheels from a car axle. It will be pointed out hereinafter how the press may be arranged for demounting one wheel at a time.

My invention is illustrated in the accompanying drawings in which similar letters of reference indicate similar parts throughout the several views, and in which,

Figure 1, is a side elevation of my press as arranged for demounting wheels only. Fig. 2, a section of Fig. 1 on line A-A: Fig. 3, a side elevation, partly in section, of part of one of the stationary end beams carrying a fixed plunger and part of a cross-head carrying a movable cylinder working on said plunger: Fig. l, a section of Fig. 1 on line BB showing arrangement of sliding wedge for adjusting the movable axle abutment carried by the stationary beam: Fig. 5, a partly sectional and partly side elevation of part of a resistance beam fitted with a hydraulically operated piston for engaging the end of an axle.

1 and 2 are fixed end beams and 3 are cross-heads at the outer ends of each of said beams. H are rods the outer ends of which are secured, respectively, to the upper and lower ends of said cross-heads and the inner ends of which are secured to the upper and lower ends of yokes 5. Both sides of the machine are alike, each being turnished with an end beam, 21 cross-head and a yoke, each cross-head being secured to its yoke by rods 1. The rods 1 are carried and slide in long bearings 14 at the tops and bottoms of the end beams 1-2.

Each of the cross-heads 3 is adapted to be moved outward from its end beam 1 or 2 hydraulically. In Fig. 1 the end beams are shown carrying cylinders 15 and the crosshead pistons 16. Liquid under pressure is admitted through ports 11 to the cylinders 15 to drive the pistons and the cross-heads outwardly and any well known form of pull-back may be employed for returning the pistons and cross-heads to their first position after completing their outward stroke. In the drawings I have shown a pull-back consisting of cables or chains 17 which pass over pulleys 10 carried by end beams 12, one of the ends of which are secured to the cross-heads and the other of which carry counterweights 9.

In Fig. 3 the end beam 1 is shown carrying a fixed plunger which is fitted in a movable cylinder carried fixedly by the crosshead, this arrangement being the reverse of that shown and described in connection with Fig. 1. It is believed that further descrip tion of this figure will be unnecessary.

The two end beams carry between them hollow distance pieces 12, there being two of these pieces at the top and two at the bottom, one to each side of the sliding rods 4. The ends of these distance pieces are of large diameter and rest against the inner ends of the end beams and through them pass tie rods 18, which also pass through the distance pieces, and carry nuts 19 which bear against the outer ends of the end beams and which are set up until the inner ends of the end beams are firmly seated against the ends of the distance pieces.

hen the wheels are pulled off there is a very considerable rebound and it is necessary in order to take care of this that the ends beams be rigidly tied together as above. If necessary the tie rods 13 may be shrunk in place and held by the nuts 19 as described. The strain of pulling a wheel oi? the axle is not transmitted from one end of the press to the other since the pressure applied to either one of the cross-heads 3 is transmitted through rods 4 to yoke 5 and thence, through the axle, to the plug or piston 7, which is carried by the end beam, and there reacts against the original force. Because the two wheels do not pull off at the same tonnage it is necessary to exert more force upon one than upon the other in order to demount them from the axle, hence it is advisable that the ends of the axle be rigidly held during the process of demounting. For this purpose both of the end beams may carry movable plugs 7, adjustable by means of a sliding wedge 8 as shown at the right in Fig. 1 and in F ig. l for engaging the axle ends, or but one beam may carry a movable plug while the other carries a hardened stationary bearing piece 6 as shown at the left in Fig. 1.

The axle carrying the wheels to be deinounted is carried 111 a gap 20 in the yoke 5 and the movable plug 7 is advanced until it engages one end of the axle and moves the other end up against the piece 6. The plug 7 is now locked and the cross-heads 3 are moved outward drawing with them the rods i and yokes These latter engage the hubs of the wheels to be removed and presently force them from their seats upon the axle.

Instead of a wedge operated plug 7 one or both of the end beams might be fitted with a hydraulic cylinder 21 which would carry a piston 22, Fig. 5, which would receive the end thrust of the axle.

Having thus described my invention I claim as new and desire to secure by Letters Patent 1. In a press of the character described, in combination, a fixed beam, a cross-head at one end of said beam, a yoke at the other end of said beam, sliding rods connecting said cross-head and yoke, a stop carried by the inner end of said beam adapted to engage the end of an axle, a hydraulically actuated means for actuating said crosshead, sliding rods and yoke in one direction, and a pull-back for operating said parts in the reverse direction.

2. In a press of the character described, in combination, two fixed end beams, hollow distance pieces engaging the inner ends of l l l said beams at their tops and bottoms, tension rods passing through said distance pieces and secured to said end beams, sliding rods carried by the tops and bottoms of each end beam, crossheads at the outer end of each beam and yokes at the inner end of each beam carried by said rods, and hydraulically operated means for actuating each cross-head and the parts connected to and moving with it.

3. In a press of the character described, in combination, two fixed end beams, means for rigidly connecting said beams at their tops and bottoms, sliding rods carried by the tops and bottoms of each beam, crossheads at the outer end and yokes at the inner end of each beam to which the sliding rods are secured, hydraulically operated means for operatively actuating each crosshead and the movable parts connected therewith, and an axle clamping means.

4:- In a press of the character set forth, in combination, two fixed end beams, means for rigidly connecting said beams at their tops and bottoms, a set of sliding rods carried by each of said beams, a cross-head connected to the outer end and a yoke connected to the inner end of each set of rods, bearings for said rods, a hydraulically operated means for operatively actuating each ofsaid cross-heads and connected parts, a pull-back for said parts, and an adjustable axle clamping means carried by one of said end beams.

ALBERT A. LONGAKER. lVitnesses:

LILLIAN M. lVoLr, JAs. A. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

